Dirigible headlight



Nov. 27, 1928. 1,693,375

R. FERRERO DIRIGIBLE HEADLIGHT Filed Jan. 12, 1928 Patented Nov. 27,1928.

UNITED STATES RENE FER-REED, OFGENE VA, SWITZERLAND.

DIRIGIBLE' HEADLIGHT.

Application filed January 12, 1928. 'Serial'No 246 51, and in GermanyFebruary 1927'.

The present invention refers to articulated headlight supports for motorand other vehicles, in which supporting members can move relatively to alimited; extent.

It is characterized in takes place against the action of a pistonworking in a cylinder by means of which piston air is compressed. Inthis manner the use of Springs for preventing the searchlights frommoving from their position of rest is avoided, which. springshave-various drawbacks.

Said springs have to be fairly strong so that they'cannot be housedeasily. within the bearing parts. Thus the amount of space required forsuch bearings is increased and their mounting on vehicles oftenditlieult, also the oscillations of the springs cause the headlights tomove, thus producing wear of the bearings and an unpleasant no Also, intime the springs losetheir elasticity and the bearing portions can nolonger be maintained immovable with respect to one another;

The accom )an iu' drawim illustrates b"v b o .y

way of example an en'ibo'diment of the invention.

Figure 1 shows anelevation of the bearing in its normal position.

7 Figure 2 is a view of the hearing when it is actuated.

Figure 3 section.

Figure l is a plan of the part ll on a smaller scale.

The bearing consists of two members 10 and 11 whiclrare jointed togetherat 12. Each portion 10 and 11. is provided with clamp gscrews 13 bywhich the headlight Llrigidly held in the portion 10, and the portion l1can be rigidly secured to a mounting 15 on the vehicle.

In the body portion 16 of the part 11 a cylinder 17 is bored. whichcylinder is connected by means of two small channels 18 with anotherchamber 19. This chamber is entirely closed by a welded or solderedcover 20.

In the upper portion of the cylinder there is a ring 21 which is drivenin and may be of steel. In this slides a small piston 22 provided with apiston ring 23, and the upper portion of the piston is rounded, and onits rear surface a leather disk 24 and a felt disk 25 are rigidlysecured by means of a small metal disc 26 and a screw 27.

The chamber 19 and the cylinder 17 are is a vertical longitudinal partthat such motion filled with a liquid as, for example,'oil', so 7thatbetween the piston and the surface :of i the liquid there is only asmall air cushion 28. I

The surface" 29 of the member 10'lying above the piston 22 is slightlyinclined as will-be seen from the drawing in orderto allow a smallcontrary motion ofthe member 1O, 11 about the axis 12.

Eachmember 10 and 11 is provided with an arm 30 or 31.. To the ar-n'rSOthe endof-a Bowden cable '32 is secured the sheath of chamber 19 arecarefullyfilled with liquid as for exampleoil to such an :extent thatunder thermg 21' and above the liquidja free space is presentin whichthe leather and a felt disks 2-): and 25:0f thepiston-22 exactlyfit,after which they are drivenin by the,

ring 21 so that the-re is still betWeen-the felt disk and the liquid asmall cushion 28- of compressed air.

The method of actuating the hearing as. follows:

Whenthe parts are in the positionshown in Figure 1 and the Bowden cable32 is movedin the direction of the arrow 33 then the members 10 and 11assume the position shown in Figure 2, the piston 22 being forced by thesurface 29 into the cylinder 17.

By this means the air cushion 28 is compressed so that as soon as thepull 011 the cable 32 ceases the piston is driven back, whereby thesemembers are again brought back to their original position.

Since the cylinder 17 and the chamber 19 are filled with oil and as thevehicle vibrates, this liquid comes into contact with the felt disk 25,this is, therefore, always saturated with oil, whereby the tightness ofthe piston is further increased.

On account of the rounded form of the surface of the piston the pressureof the surface 29 remains always practically axial on the piston so thatit works without strain.

When the members 10 and 11 are in the position shown in Figure 1 theheadlight 14 is directed straight. The slight opposite motion of theparts into the position of Figure 2 sufiices to incline the beam of raysso that the dazzling effect of the headlight on pedes trians or onpersons in vehicles is avoided.

The members 10 and 11 may be constructed of aluminum.

Since the piston 22 is provided with a piemotor or other vehicles thecombination, with ton ring 23 and since further the felt and leatherdisks 24, 25 are always saturated with oil there is no danger oi thecompressed air contained in the cylinder 17 escaping even in use.

What I claim is:

1. In an'articulated headlight support for supporting members which canmove relatively to a limited extent, of a piston working in a cylinderagainst which said motion has to take place and by means of which air iscompressed, the cylinder being almost filled tively to a limited extent,of a piston working in a cylinder against which said motion has to takeplace and by means of which air is compressed, the cylinder beingconnected with an addltional closed chamber ncreasing the volume of theliquid.

3. In a headllght dlpplng mechanism, a

two member hinged bracket, one member be ing mounted on a support andthe other adapted to carry a headlight, there being a bore formed in oneof the said members, and a cylinder and piston placed in the said boreto compress air therein, the piston acting against a part of the otherbracket member for normally maintaining the same and the headlight in aninitial position and being movable to permit the said other bracketmemberto swing slightly to dip the headlight.

4, In a headlight dipping mechanism, a two member hinged bracket, meansfor mounting one member of the bracket on a support, means for securinga headlight to the other member of the bracket, there being a boreprovided in one of the membersot the bracket, and a cylinder and pistonplaced in the said bore to compress air therein, the piston actingagainst a part of the other bracket member for normally maintaining thesame and the headlight in an initial position and being movable topermit the said other bracket member to. swing slightly to dip theheadlight. p I

5. In a. headlight dipping mechanism, a. two part hinged bracket, meansfor mounting one of the parts of the bracket on a support, means forconnecting a headlight in-the other member of the bracket, there being aborein one ofthe members of the bracket, the said bore having a quantityof liquid therein, and cylinder and piston placed in the said bore tocompress air between the same and the liquid in the bore, the pistonacting against a part of the other member of the bracket :tor normallymaintaining the sameand the headlight in an initial position and beingmovable to permit the said" other member oi the bracket to swingslightly to thereby dip the headlight.

. In testimony whereof Ifhave signed my name to this specification.

RENE rnnnano;

